Sioux Falls Tornado Today – NWS Tracks Severe Storm Risk

Story developing — confirmed facts and preliminary information are separated below.

A Sioux Falls tornado today threat is keeping South Dakota’s largest city on alert as the National Weather Service Sioux Falls office tracks strong to severe storms capable of producing large hail, damaging winds, and a few tornadoes across the region. The alert follows an extraordinarily active 2026 severe-weather season — with the NWS Sioux Falls forecast area already recording 226 warnings through July 9, the second-most on record.

Forecast Today

The NWS Sioux Falls forecast for Saturday, July 11, 2026, calls for a chance of thunderstorms with a high near 85°F and overnight low around 65°F. The NWS Warnings & Advisories page shows a Flood Warning, Heat Advisory, and Hazardous Weather Outlook in effect. AccuWeather reports no active tornado warning for Sioux Falls at the time of publication, though conditions remain favorable for severe-weather development.

NWS Sioux Falls Coverage

The National Weather Service Sioux Falls, SD office (FSD) is the lead forecast agency for southeast South Dakota, southwest Minnesota, northwest Iowa, and extreme northeast Nebraska. The office’s Severe Weather Information page confirms that strong to severe storms are expected, with large hail, damaging winds, and a few tornadoes possible — with the peak threat window between 4 p.m. and evening hours.

2026 Warning Count

The NWS Sioux Falls Facebook page confirmed that the total warning count — combining tornado and severe thunderstorm warnings — in the Sioux Falls forecast area through July 9, 2026, stands at 226. This is the second-most warnings issued in the office’s history for this point in the year. The May 17, 2026 severe-weather event alone produced several brief tornadoes and damaging wind gusts of 60 to 80 mph across a swath of northwest Iowa.

Huron EF-1

Dakota News Now confirmed that the NWS says an EF-1 tornado touched down in Huron during July 2 storms. The tornado was on the ground for five minutes, with peak winds reaching 90 mph. No injuries or deaths were reported. Huron is located in Beadle County, roughly 100 miles northwest of Sioux Falls along Interstate 90 — squarely within the NWS Sioux Falls forecast area.

McCook County Warning

MitchellNow documented a tornado warning for McCook County, with UPDATE 2 confirming a new tornado warning for eastern McCook County. Flash flooding, hail, high winds, and a potential tornado were all possible with the cell, with the warning lasting until 7:45 p.m. McCook County is immediately west of Minnehaha County (home to Sioux Falls), making any tornado warning there a direct concern for the broader metro. WeatherNation separately documented Sioux Falls and surrounding areas under tornado warnings on a Sunday night, with a confirmed tornado reported south of the city.

Public Safety

If a Sioux Falls tornado today warning is issued for your area, take these steps immediately:

Move to a basement or interior room on the lowest floor of a sturdy building.
Stay away from windows, exterior walls, and large open spaces.
Mobile homes and vehicles are not safe — abandon them for sturdier shelter.
Monitor NWS Sioux Falls and Minnehaha County alerts for official updates.

Conclusion

The Sioux Falls tornado today threat remains active as NWS Sioux Falls tracks strong to severe storms capable of producing large hail, damaging winds, and a few tornadoes. With 226 warnings already issued in 2026 (second-most on record), the Huron EF-1 touchdown, the McCook County tornado warning, and the Sunday night Sioux Falls tornado warnings all in recent context, residents should treat every fresh NWS alert seriously, monitor weather.gov/fsd, and shelter immediately if a tornado warning is issued for their area.

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